What is CVE-2026-7136?

CVE-2026-7136 is a critical-severity vulnerability in Totolink A8000ru, classified under Command Injection. CVSS score: 9.8/10. Published 2026-04-27.

How severe is CVE-2026-7136?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Totolink A8000ru

CVE-2026-7136

A weakness has been identified in Totolink A8000RU 7.1cu.643_b20200521. Affected by this issue is the function setDmzCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument wanIdx can lea…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.018 (75.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Totolink A8000ru — versions 7.1cu.643_b20200521

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)
cna@vuldb.com (product)

Frequently asked questions

What is CVE-2026-7136?: CVE-2026-7136 is a critical-severity vulnerability in Totolink A8000ru, classified under Command Injection. CVSS score: 9.8/10. Published 2026-04-27.
How severe is CVE-2026-7136?: Critical severity. CVSS v3 base score is 9.8 out of 10.